<?php

$a = $a-$b;
$a = $a  -  $b;
$a =  - $a;
$a =  self::CONST-  $a;
$a = - (15 + 3);
if ($a > - 16 || $a > - $b || $a > - self::CONSTANT) {

}


function(){yield - 1;};
echo - 1;
$a = - 1;
func(- 1);
$a = [- 1];
return - 1;
print - 1;
$a &= - 1;
switch ($a) {
	case - 1:
}
$a = $a ?? - 1;
$a .= - 1;
$a /= - 1;
$a = [1 => - 1];
$a = $a == - 1;
$a = $a >= - 1;
$a = $a === - 1;
$a = $a != - 1;
$a = $a !== - 1;
$a = $a <= - 1;
$a = $a <=> - 1;
$a = $a and - 1;
$a = $a or - 1;
$a = $a xor - 1;
$a -= - 1;
$a %= - 1;
$a *= - 1;
$a |= - 1;
$a += - 1;
$a = $a ** - 1;
$a **= - 1;
$a = $a << - 1;
$a <<= - 1;
$a = $a >> - 1;
$a >>= - 1;
$a = (string) - 1;
$a = (array) - 1;
$a = (bool) - 1;
$a = (object) - 1;
$a = (float) - 1;
$a = (int) - 1;
$a ^= - 1;
$a = [$a, - 1];
$a = $a[- 1];
$a = $a ? - 1 : - 1;


function(){yield - $b;};
echo - $b;
$a = - $b;
func(- $b);
$a = [- $b];
return - $b;
print - $b;
$a &= - $b;
switch ($a) {
	case - $b:
}
$a = $a ?? - $b;
$a .= - $b;
$a /= - $b;
$a = [1 => - $b];
$a = $a == - $b;
$a = $a >= - $b;
$a = $a === - $b;
$a = $a != - $b;
$a = $a !== - $b;
$a = $a <= - $b;
$a = $a <=> - $b;
$a = $a and - $b;
$a = $a or - $b;
$a = $a xor - $b;
$a -= - $b;
$a %= - $b;
$a *= - $b;
$a |= - $b;
$a += - $b;
$a = $a ** - $b;
$a **= - $b;
$a = $a << - $b;
$a <<= - $b;
$a = $a >> - $b;
$a >>= - $b;
$a = (string) - $b;
$a = (array) - $b;
$a = (bool) - $b;
$a = (object) - $b;
$a = (float) - $b;
$a = (int) - $b;
$a ^= - $b;
$a = [$a, - $b];
$a = $a[- $b];
$a = $a ? - $b : - $b;
